LIST OF LETTERS AND SIGNS USED IN 

 THIS GUIDE. 



J, head. 



a, egg-pod. 



a', cluster of eggs. 



a" site of egg-pod. 



abt^~^, abdominal tracheae. 



ant, anterior. 



at, antennae. 



B, thorax. 



b' , prothorax. 

 (5", mesothorax. 

 (^"', metathorax. 

 be, bursa copulatrix. 

 bt, mentum. 



C, abdomen. 



ri~i'^, abdominal rings. 



ca, cardo. 



d, clypeus. 



en, central canal. 



cs, cushions. 



ct, cephalic trachea. 



CIV, claws. 



ex, coxa. 



d, spine. 



dt, dorsal trachea. 

 dz, dorsal muscles. 



e, fleshy membrane. 

 ea, ears. 



<r» egg-guide. 

 ep, epicranium. 

 epx, epipharynx. 

 ey, eyes. 

 ey' , cornea of eye. 



f, chitinous margin. 

 fr, femur. 

 fr\ teeth of femur. 

 fz, frontal muscles. 



^ ) 



^' |- thoracic sterna. 



.-'" i 

 gl, galea. 

 gn, gena. 

 ^u, gula. 



"1 



//- >■ episterna. 



hph, floor of pharynx. 



/is- \ epimera. 



hyp, hypopharynx. 

 if, infra-oesophageal ganglion. 

 j, abdominal folds. 

 k^~'^, abdominal sterna. 

 k^, subgenital plate. 

 /', 1st pair of legs. 

 /", 2d pair of legs. 

 /'", 3d pair of legs. 

 la, labrum. 



lae, labrum-epipharynx. 

 le, lacinia. 

 Ig, ligula. 



l^, swelling of ligula. 

 Ip, shoulder lappets. 

 /s^-/s-^, prop-legs. 



